Etienne CHAMPETIER 3946a55291 base-files: seed /dev/urandom ... This commit: 1) seed /dev/urandom with the saved seeds as early as possible (see /lib/preinit/81_urandom_seed) 2) save a seed at /etc/urandom.seed if it doesn't exists 3) save a new seed each boot at "system.@system[0].urandom_seed" (see /etc/init.d/urandom_seed) We use getrandom() so we are sure /dev/urandom pool is initialized Seed size is 512 bytes (ie /proc/sys/kernel/random/poolsize / 8) it's the same size as in ubuntu 14.04 and all systemd systems Seeding /dev/urandom doesn't change entropy estimation, so we still have "random: ubus urandom read with 4 bits of entropy available" messages in the logs, but we can now ignore them if after "urandom-seed: Seeding with ..." message Saving a new seed on each boot is disabled by default to avoid too much writes without user consent v2: log preinit messages to /dev/kmsg v3: use non generic function name for logging, as /lib/preinit/ files are all sourced together in /etc/preinit v4: after a lot of discussion on the ML, use a uci config param v5: config param is now the path of the seed Signed-off-by: Etienne CHAMPETIER <champetier.etienne@gmail.com> Acked-by: Jo-Philipp Wich <jo@mein.io>		2016-06-30 22:48:39 +02:00
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board_detect	base-files: rework config generation logic	2016-06-08 00:34:02 +02:00
config_generate	base-files: seed /dev/urandom	2016-06-30 22:48:39 +02:00
ipcalc.sh	base-files: ipcalc.sh: support bit length as netmask parameter	2013-12-16 16:29:23 +00:00